I'd like to add that my understanding of "affair busting" as it's done in infidelity or newcomers goes beyond exposure to setting very firm boundaries. I would caution anyone dealing with MLCers to be VERY careful setting firm boundaries - be sure you are ready, willing and able to emotionally handle having to follow through with the consequences. Because there will be consequences. Setting boundaries you can't enforce can, and will likely set you back.
Remember, YOU are the cause of all that is wrong in their life ... the OP is a shining star of everything that is perfect and good. Do the math.
I agree with Jack, expose in that you let them know you know. I wouldn't tell them how. I also wouldn't advertise it, for the reasons Jack mentions, as well as the fact that it makes it harder for you if everyone is trying to convince you to leave the philandering SOB. They won't understand your choices.
Each situation is very different ... the circumstances, the people, the personalities, the kids, etc ... PEI
Holding onto anger to punish someone else, is like lighting yourself on fire to get smoke in their eyes ~ 25yearsmlc
